------------[ cut here ]------------
WARNING: CPU: 0 PID: 9195 at net/mac80211/tx.c:4859 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4859 [inline]
WARNING: CPU: 0 PID: 9195 at net/mac80211/tx.c:4859 __ieee80211_beacon_get+0x179f/0x2000 net/mac80211/tx.c:5083
Modules linked in:
CPU: 0 PID: 9195 Comm: syz.4.1226 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4859 [inline]
RIP: 0010:__ieee80211_beacon_get+0x179f/0x2000 net/mac80211/tx.c:5083
Code: 2a f8 0f 0b 4f 89 64 2f 04 4f 89 64 2f 0c 43 c6 44 2f 14 f8 e9 19 fe ff ff e8 0d c0 2a f8 0f 0b e9 03 ef ff ff e8 01 c0 2a f8 <0f> 0b e9 76 f2 ff ff e8 15 89 6d 00 89 d9 80 e1 07 80 c1 03 38 c1
RSP: 0018:ffffc900000078e0 EFLAGS: 00010246
RAX: ffffffff894e5f9f RBX: ffff88807a24e298 RCX: ffff88805d0cd940
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000007b08 R08: ffff88805d0cd940 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff888056606e00
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff92000000f2c
FS:  00007f525e0e06c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f525fef3400 CR3: 00000000505b1000 CR4: 00000000003506f0
Call Trace:
 <IRQ>
 ieee80211_beacon_get_tim+0x48/0x840 net/mac80211/tx.c:5202
 ieee80211_beacon_get include/net/mac80211.h:4983 [inline]
 mac80211_hwsim_beacon_tx+0xf4/0x920 drivers/net/wireless/mac80211_hwsim.c:1812
 __iterate_interfaces+0x243/0x500 net/mac80211/util.c:793
 ieee80211_iterate_active_interfaces_atomic+0xb3/0x140 net/mac80211/util.c:829
 mac80211_hwsim_beacon+0x9b/0x180 drivers/net/wireless/mac80211_hwsim.c:1865
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x4eb/0xb70 kernel/time/hrtimer.c:1749
 hrtimer_run_softirq+0x176/0x240 kernel/time/hrtimer.c:1766
 handle_softirqs+0x339/0x830 kernel/softirq.c:576
 __do_softirq kernel/softirq.c:610 [inline]
 invoke_softirq kernel/softirq.c:450 [inline]
 __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:659
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:__import_iovec+0x0/0x490 lib/iov_iter.c:1940
Code: ff ff ff 0f 01 ca e9 09 ff ff ff e8 4a 83 96 fd 48 c7 c3 f2 ff ff ff 0f 01 ca e9 f5 fe ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 <55> 41 57 41 56 41 55 41 54 53 48 83 ec 48 4c 89 4c 24 08 4d 89 c5
RSP: 0018:ffffc90002f9fa50 EFLAGS: 00000246
RAX: ffffffff83e2a155 RBX: 0000000000000000 RCX: 0000000000000008
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000008 R08: ffffc90002f9fc00 R09: ffffc90002f9fd50
R10: dffffc0000000000 R11: fffff520005f3f67 R12: 0000000000000000
R13: 0000000000000000 R14: ffffc90002f9fc00 R15: 0000000000000000
 import_iovec+0x6f/0xa0 lib/iov_iter.c:2010
 copy_msghdr_from_user net/socket.c:2383 [inline]
 recvmsg_copy_msghdr net/socket.c:2630 [inline]
 ___sys_recvmsg+0x4e9/0x5c0 net/socket.c:2702
 do_recvmmsg+0x382/0x850 net/socket.c:2800
 __sys_recvmmsg net/socket.c:2879 [inline]
 __do_sys_recvmmsg net/socket.c:2902 [inline]
 __se_sys_recvmmsg net/socket.c:2895 [inline]
 __x64_sys_recvmmsg+0x195/0x250 net/socket.c:2895
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f525fea5cb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f525e0e0028 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f5260121090 RCX: 00007f525fea5cb9
RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000003
RBP: 00007f525ff13bf7 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5260121128 R14: 00007f5260121090 R15: 00007fff295c50f8
 </TASK>
----------------
Code disassembly (best guess), 2 bytes skipped:
   0:	ff 0f                	decl   (%rdi)
   2:	01 ca                	add    %ecx,%edx
   4:	e9 09 ff ff ff       	jmp    0xffffff12
   9:	e8 4a 83 96 fd       	call   0xfd968358
   e:	48 c7 c3 f2 ff ff ff 	mov    $0xfffffffffffffff2,%rbx
  15:	0f 01 ca             	clac
  18:	e9 f5 fe ff ff       	jmp    0xffffff12
  1d:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  24:	00 00 00
  27:	90                   	nop
* 28:	55                   	push   %rbp <-- trapping instruction
  29:	41 57                	push   %r15
  2b:	41 56                	push   %r14
  2d:	41 55                	push   %r13
  2f:	41 54                	push   %r12
  31:	53                   	push   %rbx
  32:	48 83 ec 48          	sub    $0x48,%rsp
  36:	4c 89 4c 24 08       	mov    %r9,0x8(%rsp)
  3b:	4d 89 c5             	mov    %r8,%r13